My last period started June 24th. I had sex with an ex boyfriend on June 28th/June 29th early early in the morning and my period was basically over. I started seeing someone else and we started having sex early in July.. I found out I was pregnant on June 25th and have a due date of March 30th. Who is most likely the father? I heard it is very hard to get pregnant so soon after your period started.

The dates are pretty close together. Unless you know exactly when you ovulate by tracking ovulation (not with a phone app) then there's really no way to even guess. Even then it would be hard.

You'll have to wait for the baby to be born and have a DNA test done.

Good luck. :)